Se recogen 25 hojas caídas de un árbol, y se registran sus longitudes en centímetros. 1; 7; 13; 5; 8; 11; 17;15; 21; 3; 3; 10; 4; 5; 5; 18; 13; 15; 1; 14; 7; 9; 10; 18; 2.

Elabora una tabla de frecuencia para datos agrupados. Se recomienda utilizar el número de intervalos 5.

168

step-by-step explanation:

i am pretty sure that the answer is 168

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64

might be the correct answer will be question number 2